English · Daily Life
hit the sack
/hɪt ðə sæk/
[/hɪt ðə sæk/]
go to bed
Intermediatephrase
Definition
To go to bed in order to sleep.
Example
I'm exhausted after that long drive, so I'm going to hit the sack early tonight.
I'm exhausted after that long drive, so I'm going to hit the sack early tonight.
Etymology
Early 20th-century American slang, from sacks once stuffed with hay or straw used as mattresses.
How & Where It’s Used
Very informal and casual for going to bed.